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-rw-r--r--common/scaler.cpp163
1 files changed, 70 insertions, 93 deletions
diff --git a/common/scaler.cpp b/common/scaler.cpp
index 0eb811fb3c..d7dd46d42b 100644
--- a/common/scaler.cpp
+++ b/common/scaler.cpp
@@ -108,15 +108,14 @@ static inline uint32 Q_INTERPOLATE(uint32 A, uint32 B, uint32 C, uint32 D) {
void Super2xSaI(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height) {
const uint16 *bP;
- uint8 *dP;
- const uint32 inc_bP = 1;
- const uint32 Nextline = srcPitch >> 1;
+ uint16 *dP;
+ const uint32 nextlineSrc = srcPitch >> 1;
while (height--) {
bP = (const uint16 *)srcPtr;
- dP = (uint8 *)dstPtr;
+ dP = (uint16 *)dstPtr;
- for (uint32 finish = width; finish; finish -= inc_bP) {
+ for (int i = 0; i < width; ++i) {
uint32 color4, color5, color6;
uint32 color1, color2, color3;
uint32 colorA0, colorA1, colorA2, colorA3;
@@ -129,25 +128,25 @@ void Super2xSaI(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstP
// 1 2 3 S1
// A1 A2
- colorB0 = *(bP - Nextline - 1);
- colorB1 = *(bP - Nextline);
- colorB2 = *(bP - Nextline + 1);
- colorB3 = *(bP - Nextline + 2);
+ colorB0 = *(bP - nextlineSrc - 1);
+ colorB1 = *(bP - nextlineSrc);
+ colorB2 = *(bP - nextlineSrc + 1);
+ colorB3 = *(bP - nextlineSrc + 2);
color4 = *(bP - 1);
color5 = *(bP);
color6 = *(bP + 1);
colorS2 = *(bP + 2);
- color1 = *(bP + Nextline - 1);
- color2 = *(bP + Nextline);
- color3 = *(bP + Nextline + 1);
- colorS1 = *(bP + Nextline + 2);
+ color1 = *(bP + nextlineSrc - 1);
+ color2 = *(bP + nextlineSrc);
+ color3 = *(bP + nextlineSrc + 1);
+ colorS1 = *(bP + nextlineSrc + 2);
- colorA0 = *(bP + Nextline + Nextline - 1);
- colorA1 = *(bP + Nextline + Nextline);
- colorA2 = *(bP + Nextline + Nextline + 1);
- colorA3 = *(bP + Nextline + Nextline + 2);
+ colorA0 = *(bP + 2 * nextlineSrc - 1);
+ colorA1 = *(bP + 2 * nextlineSrc);
+ colorA2 = *(bP + 2 * nextlineSrc + 1);
+ colorA3 = *(bP + 2 * nextlineSrc + 2);
//--------------------------------------
if (color2 == color6 && color5 != color3) {
@@ -199,57 +198,49 @@ void Super2xSaI(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstP
else
product1a = color5;
-#ifdef SCUMM_LITTLE_ENDIAN
- product1a = product1a | (product1b << 16);
- product2a = product2a | (product2b << 16);
-#endif
-
-#ifdef SCUMM_BIG_ENDIAN
- product1a = product1b | (product1a << 16);
- product2a = product2b | (product2a << 16);
-#endif
- *((uint32 *)dP) = product1a;
- *((uint32 *)(dP + dstPitch)) = product2a;
+ *(dP + 0) = product1a;
+ *(dP + 1) = product1b;
+ *(dP + dstPitch/2 + 0) = product2a;
+ *(dP + dstPitch/2 + 1) = product2b;
- bP += inc_bP;
- dP += sizeof(uint32);
- } // end of for ( finish= width etc..)
+ bP += 1;
+ dP += 2;
+ }
srcPtr += srcPitch;
dstPtr += dstPitch * 2;
- } // while (height--)
+ }
}
void SuperEagle(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height) {
- uint8 *dP;
const uint16 *bP;
- const uint32 inc_bP = 1;
- const uint32 Nextline = srcPitch >> 1;
+ uint16 *dP;
+ const uint32 nextlineSrc = srcPitch >> 1;
while (height--) {
bP = (const uint16 *)srcPtr;
- dP = dstPtr;
- for (uint32 finish = width; finish; finish -= inc_bP) {
+ dP = (uint16 *)dstPtr;
+ for (int i = 0; i < width; ++i) {
uint32 color4, color5, color6;
uint32 color1, color2, color3;
uint32 colorA1, colorA2, colorB1, colorB2, colorS1, colorS2;
uint32 product1a, product1b, product2a, product2b;
- colorB1 = *(bP - Nextline);
- colorB2 = *(bP - Nextline + 1);
+ colorB1 = *(bP - nextlineSrc);
+ colorB2 = *(bP - nextlineSrc + 1);
color4 = *(bP - 1);
color5 = *(bP);
color6 = *(bP + 1);
colorS2 = *(bP + 2);
- color1 = *(bP + Nextline - 1);
- color2 = *(bP + Nextline);
- color3 = *(bP + Nextline + 1);
- colorS1 = *(bP + Nextline + 2);
+ color1 = *(bP + nextlineSrc - 1);
+ color2 = *(bP + nextlineSrc);
+ color3 = *(bP + nextlineSrc + 1);
+ colorS1 = *(bP + nextlineSrc + 2);
- colorA1 = *(bP + Nextline + Nextline);
- colorA2 = *(bP + Nextline + Nextline + 1);
+ colorA1 = *(bP + 2 * nextlineSrc);
+ colorA2 = *(bP + 2 * nextlineSrc + 1);
// --------------------------------------
if (color2 == color6 && color5 != color3) {
@@ -311,38 +302,31 @@ void SuperEagle(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstP
product2a = Q_INTERPOLATE(color2, color2, color2, product2a);
product1b = Q_INTERPOLATE(color6, color6, color6, product1b);
}
-#ifdef SCUMM_LITTLE_ENDIAN
- product1a = product1a | (product1b << 16);
- product2a = product2a | (product2b << 16);
-#endif
-
-#ifdef SCUMM_BIG_ENDIAN
- product1a = product1b | (product1a << 16);
- product2a = product2b | (product2a << 16);
-#endif
- *((uint32 *)dP) = product1a;
- *((uint32 *)(dP + dstPitch)) = product2a;
-
- bP += inc_bP;
- dP += sizeof(uint32);
- } // end of for ( finish= width etc..)
+
+ *(dP + 0) = product1a;
+ *(dP + 1) = product1b;
+ *(dP + dstPitch/2 + 0) = product2a;
+ *(dP + dstPitch/2 + 1) = product2b;
+
+ bP += 1;
+ dP += 2;
+ }
srcPtr += srcPitch;
dstPtr += dstPitch * 2;
- } // endof: while (height--)
+ }
}
void _2xSaI(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height) {
- uint8 *dP;
const uint16 *bP;
- const uint32 inc_bP = 1;
- const uint32 Nextline = srcPitch >> 1;
+ uint16 *dP;
+ const uint32 nextlineSrc = srcPitch >> 1;
while (height--) {
bP = (const uint16 *)srcPtr;
- dP = dstPtr;
+ dP = (uint16 *)dstPtr;
- for (uint32 finish = width; finish; finish -= inc_bP) {
+ for (int i = 0; i < width; ++i) {
register uint32 colorA, colorB;
uint32 colorC, colorD,
@@ -354,25 +338,25 @@ void _2xSaI(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch
// G|A B|K
// H|C D|L
// M|N O|P
- colorI = *(bP - Nextline - 1);
- colorE = *(bP - Nextline);
- colorF = *(bP - Nextline + 1);
- colorJ = *(bP - Nextline + 2);
+ colorI = *(bP - nextlineSrc - 1);
+ colorE = *(bP - nextlineSrc);
+ colorF = *(bP - nextlineSrc + 1);
+ colorJ = *(bP - nextlineSrc + 2);
colorG = *(bP - 1);
colorA = *(bP);
colorB = *(bP + 1);
colorK = *(bP + 2);
- colorH = *(bP + Nextline - 1);
- colorC = *(bP + Nextline);
- colorD = *(bP + Nextline + 1);
- colorL = *(bP + Nextline + 2);
+ colorH = *(bP + nextlineSrc - 1);
+ colorC = *(bP + nextlineSrc);
+ colorD = *(bP + nextlineSrc + 1);
+ colorL = *(bP + nextlineSrc + 2);
- colorM = *(bP + Nextline + Nextline - 1);
- colorN = *(bP + Nextline + Nextline);
- colorO = *(bP + Nextline + Nextline + 1);
- colorP = *(bP + Nextline + Nextline + 2);
+ colorM = *(bP + 2 * nextlineSrc - 1);
+ colorN = *(bP + 2 * nextlineSrc);
+ colorO = *(bP + 2 * nextlineSrc + 1);
+ colorP = *(bP + 2 * nextlineSrc + 2);
if ((colorA == colorD) && (colorB != colorC)) {
if (((colorA == colorE) && (colorB == colorL)) || ((colorA == colorC) && (colorA == colorF)
@@ -456,25 +440,18 @@ void _2xSaI(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch
}
}
-#ifdef SCUMM_LITTLE_ENDIAN
- product = colorA | (product << 16);
- product1 = product1 | (product2 << 16);
-#endif
+ *(dP + 0) = colorA;
+ *(dP + 1) = product;
+ *(dP + dstPitch/2 + 0) = product1;
+ *(dP + dstPitch/2 + 1) = product2;
-#ifdef SCUMM_BIG_ENDIAN
- product = (colorA << 16) | product;
- product1 = (product1 << 16) | product2;
-#endif
- *((int32 *)dP) = product;
- *((uint32 *)(dP + dstPitch)) = product1;
-
- bP += inc_bP;
- dP += sizeof(uint32);
- } // end of for ( finish= width etc..)
+ bP += 1;
+ dP += 2;
+ }
srcPtr += srcPitch;
dstPtr += dstPitch * 2;
- } // endof: while (height--)
+ }
}
void AdvMame2x(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch,
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-24 12:04:29 +0000